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srs

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

H RESTRAINTS

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SECTION SRS B

E
CONTENTS
PRECAUTIONS ......................................................... 3
. Trouble Diagnosis without CONSULT-II ................ 29 . F
Precautions for Supplemental Restraint System DIAGNOSTIC PROCEDURE 6 .......................... 29 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- WARNING LAMP FLASH CODE CHART .......... 29 .
SIONER" ................................................................. 3
. Trouble Diagnosis: "AIR BAG" Warning Lamp Does G
Precautions for SRS "AIR BAG" and "SEAT BELT Not Turn OFF ........................................................ 33
.
PRE-TENSIONER" Service .................................... 3 . DIAGNOSTIC PROCEDURE 7 .......................... 33 .
PREPARATION .......................................................... 4
. Trouble Diagnosis: "AIR BAG" Warning Lamp Does
SRS
Commercial Service Tools ....................................... 4 . Not Turn ON .......................................................... 34
.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ...... 5 . DIAGNOSTIC PROCEDURE 8 .......................... 34 .
SRS Configuration .................................................. 5
. DRIVER AIR BAG MODULE ................................... 35 .
Front Seat Belt Pre-Tensioner with Load Limiter ..... 6 Removal and Installation ....................................... 35. I
Front Side Air Bag ................................................... 6
. REMOVAL .......................................................... 35
.
Side Curtain Air Bag ................................................ 6
. INSTALLATION .................................................. 36
.
TROUBLE DIAGNOSIS ............................................. 7 . SPIRAL CABLE ....................................................... 37
. J
Trouble Diagnosis Introduction ................................ 7 . Removal and Installation ....................................... 37.
DIAGNOSIS FUNCTION ...................................... 7 . REMOVAL .......................................................... 37
.
HOW TO PERFORM TROUBLE DIAGNOSIS INSTALLATION .................................................. 38
.
K
FOR QUICK AND ACCURATE REPAIR .............. 7 . FRONT PASSENGER AIR BAG MODULE ............. 39 .
WORK FLOW ....................................................... 8
. Removal and Installation ....................................... 39.
Component Parts Location ...................................... 9 . REMOVAL .......................................................... 39
.
Schematic ............................................................. 10
. INSTALLATION .................................................. 39
. L
Wiring Diagram -- SRS -- .....................................11 . SIDE CURTAIN AIR BAG MODULE ....................... 40 .
CONSULT-II Function ........................................... 15 . Removal and Installation ....................................... 40.
DIAGNOSIS MODE FOR CONSULT-II .............. 15 . REMOVAL .......................................................... 40
. M
HOW TO CHANGE SELF-DIAGNOSIS MODE INSTALLATION .................................................. 41
.
WITH CONSULT-II ............................................. 15 . CRASH ZONE SENSOR .......................................... 42 .
HOW TO ERASE SELF-DIAGNOSTIC Removal and Installation ....................................... 42.
RESULTS ........................................................... 16
. REMOVAL .......................................................... 42
.
Self-Diagnosis Function (Without CONSULT-II) .... 16 . INSTALLATION .................................................. 42
.
HOW TO CHANGE SELF-DIAGNOSIS MODE SIDE AIR BAG (SATELLITE) SENSOR .................. 43 .
WITHOUT CONSULT-II ..................................... 16 . Removal and Installation ....................................... 43.
HOW TO ERASE SELF-DIAGNOSIS RESULTS 16 ... REMOVAL .......................................................... 43
.
SRS Operation Check ........................................... 17 . INSTALLATION .................................................. 43
.
DIAGNOSTIC PROCEDURE 1 .......................... 17 . FRONT SEAT BELT PRE-TENSIONER .................. 44 .
Trouble Diagnosis with CONSULT-II ..................... 19 . Removal and Installation ....................................... 44.
DIAGNOSTIC PROCEDURE 2 .......................... 19 . DIAGNOSIS SENSOR UNIT .................................... 45 .
DIAGNOSTIC PROCEDURE 3 .......................... 23 . Removal and Installation ....................................... 45.
DIAGNOSTIC PROCEDURE 4 (CONTINUED REMOVAL .......................................................... 45
.
FROM DIAGNOSTIC PROCEDURE 2) ............. 25 . INSTALLATION .................................................. 45
.
DIAGNOSTIC PROCEDURE 5 .......................... 25 . ECU DISCRIMINATED NO. ............................... 45 .

Revision: 2005 July SRS-1 2005 FX
COLLISION DIAGNOSIS ......................................... 46 . THE SIDE COLLISION: ......................................48 .
For Frontal Collision ............................................... 46
. WHEN SRS IS NOT ACTIVATED IN THE SIDE
SRS INSPECTION (FOR FRONTAL COLLI- COLLISION: ........................................................48
.
SION) .................................................................. 46
. SRS INSPECTION (FOR SIDE COLLISION) .....48 .
For Side Collision .................................................. 48
.
WHEN THE SIDE AIR BAG IS ACTIVATED IN

Revision: 2005 July SRS-2 2005 FX
PRECAUTIONS

PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AHS000HB

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front C
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING: D
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer. E
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section. F
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
G
Precautions for SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
AHS000HC

q Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual. SRS
q Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt I
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
q Diagnosis sensor unit must always be installed with their arrow marks "" pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before instal- J
lation and replace as required.
q The spiral cable must be aligned with the neutral position since its rotations are limited. Do not turn steer-
ing wheel and column after removal of steering gear. K
q Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and seat mounted front side air bag module standing with the stud bolt side facing
down. L
q Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
q After air bag inflates, the front instrument panel assembly should be replaced if damaged.
q Always replace instrument panel pad following front passenger air bag deployment. M

Revision: 2005 July SRS-3 2005 FX
PREPARATION

PREPARATION PFP:00002

Commercial Service Tools AHS000HG

Tool name Description

Tamper resistant TORX bit Size: T30

S-NT757

Revision: 2005 July SRS-4 2005 FX
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PFP:28556
A
SRS Configuration AHS000HH

SRS

PHIA0698E

J
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the ON or START posi-
tion.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module and front passenger air bag module are activated in a frontal col- K
lision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows:
L
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag module

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